Santo Domingo

NM: Sandoval Co.

Age. Late Blancan (between 2.67 and 2.41 my)
(Morgan and Lucas 2003).

General Description. Sierra Ladrones Formation in the Albuquerque basin
(Morgan and Lucas 2003).

Discussion. According to Morgan and Lucas (2003), presence of
Nannippus indicates that the fauna is older than the extinction date for that
taxon (2.2 mya), while other data indicate the age might be as old as 2.7 my and thus
in latest Pliocene.